5 doctors weighed in:
What is the chance of a new child having pyloric stenosis?
5 doctors weighed in

Dr. Charles Breaux
Surgery - Pediatric
2 doctors agree
In brief: Gender/Race involved
Hypertrophic pyloric stenosis (hps) is more common in boy babies & white babies.
There is a 1 in 300 chance of a white baby boy developing hps. It is 5 times more common in boys than girls & 5 times more common in whites than blacks. Therefore, it is most commonly seen in white baby boys & least commonly seen in black baby girls.

In brief: Gender/Race involved
Hypertrophic pyloric stenosis (hps) is more common in boy babies & white babies.
There is a 1 in 300 chance of a white baby boy developing hps. It is 5 times more common in boys than girls & 5 times more common in whites than blacks. Therefore, it is most commonly seen in white baby boys & least commonly seen in black baby girls.
Dr. Charles Breaux
Dr. Charles Breaux
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Dr. Barry Bergman
Pediatrics
1 doctor agrees
In brief: Low
The classic description is the first male born.
Of course this is not always the case. There are certainly family histories of several generations having children with pyloric stenosis, but pyloric stenosis itself is not very common . We see about 1-2 every 1-2 years in my practice or less.

In brief: Low
The classic description is the first male born.
Of course this is not always the case. There are certainly family histories of several generations having children with pyloric stenosis, but pyloric stenosis itself is not very common . We see about 1-2 every 1-2 years in my practice or less.
Dr. Barry Bergman
Dr. Barry Bergman
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Dr. Gerald Mandell
Nuclear Medicine
In brief: Suspected causes
Causes are unknown, but some genetic and environmental factors probably.
Higher rates among certain families and offspring of mothers who had pyloric stenosis.Pyloric stenosis occurs more often in males than in females.Early antibiotic use in infants and during pregnancy of mothers may play role.3 out of 1,000 babies in US.4 x more in 1st born males.If in parent then infant 20% chance

In brief: Suspected causes
Causes are unknown, but some genetic and environmental factors probably.
Higher rates among certain families and offspring of mothers who had pyloric stenosis.Pyloric stenosis occurs more often in males than in females.Early antibiotic use in infants and during pregnancy of mothers may play role.3 out of 1,000 babies in US.4 x more in 1st born males.If in parent then infant 20% chance
Dr. Gerald Mandell
Dr. Gerald Mandell
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